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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(6): 3839-3846
DOI: https://doi.org/10.20546/ijcmas.2018.706.452


Studies on Screening of BC3F1 Popuation Against Sorgum Down Mildew in Maize (Peronoscelrospora sorghi)
K. Sumathi1*, K.N. Ganesan2 and N. Senthil
1Centre for Plant breeding and Genetics, TNAU Coimbatore, India Professor Millet Breeding Station, TNAU Coimbatore. N.Senthil, Professor, Centre for Plant Molecular Biology, TNAU Coimbatore
*Corresponding author
Abstract:

An experiment was carried out during Rabi, 2013 at Eastern Block of the Central Farm Unit, Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India to identify resistant progenies in BC3F1 population against sorghum downy mildew (SDM) incited by peronoclesropora sorghi. Sorghum downy mildew is one of the most serious diseases in maize producing areas throughout the world. P. sorghi (SDM) is a factor that limits maize production in several countries of Asia (Rifin 1983). Therefore, there is a need to develop the new maize cultivars with resistance to SDM in order to enhance the yield. In this present study, experiments were undertaken under vigorous artificial infection conditions in spreader row technique during Rabi, 2013 for characterization of responses of 22 back cross progenies to the SDM; in which 16 progenies were confirmed as phenotypically resistant to sorghum downy mildew viz., UMI 79/936-C1-3-2, UMI 79/936-C1-3-4, UMI 79/936-C1-7-2, UMI 79/936-C1-29-8, UMI 79/936-C1-29-9, UMI 79/936-C1-29-13, UMI 79/936-C1-29-23, UMI 79/936-C1-29-35, UMI 79/936-C1-29-36, UMI 79/936-C1-67-3, UMI 79/936-C1-67-12, UMI 79/936-C1-67-25, UMI 79/936-C1-101-12, UMI 79/936-C1-101-13 and UMI 79/936-C1-101-14. Resistant lines will be serve as basis material for developing single cross and double cross hybrids for resistance against sorghum downy mildew in maize.


Keywords: Maize, Sorghum downy mildew, Screening, Back cross progenies
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How to cite this article:

Sumathi, K., K.N. Ganesan and Senthil, N. 2018. Studies on Screening of BC3F1 Popuation Against Sorgum Down Mildew in Maize (Peronoscelrospora sorghi).Int.J.Curr.Microbiol.App.Sci. 7(6): 3839-3846. doi: https://doi.org/10.20546/ijcmas.2018.706.452